Ontic Dampening Cloth (Standard Issue, Type-δ)

The Ontic Dampening Cloth (Standard Issue, Type-δ) is the authorized polishing textile of the Tower, rated for use on epistemically reflective surfaces where direct handling would otherwise produce recursive observation loops. It is issued folded to a nominal square of 400 mm by 400 mm, hemmed on four edges, and dyed a uniform unlit grey that the Guild of Lapidaries has twice declined to name. It is catalogued under consumables, though no issued cloth has ever been recorded as consumed.

Every Type-δ cloth bears a certification seal from the Guild of Lapidaries at the lower left corner, applied in Wax Cylinder Standard Issue Grey and legible only when the cloth is held against the light in a particular way that the Guild's own instruction sheet does not describe. Of the several field complaints known to the Office of Ontic Verification, all but two concern the seal.

Issue and construction

The cloth is woven in the upper annuli and cut to dimension in the Textile Annexes of Floor 214-β, following the general specifications of Dampening Protocols. Issue is by requisition, one cloth per clerk, replaced only on surrender of the previous cloth, which is destroyed in the presence of a witness. Clerks frequently report that the replacement is "the same cloth, returned," a claim the Office of Ontic Verification has investigated forty-one times and rejected forty-one times.

Type-δ is distinguished from Types α through γ chiefly by the presence of a single selvedge thread, unwoven and left pendant, at the upper right corner. The thread is load-bearing in a doctrinal rather than a physical sense; the relevant recension of the Dampening Protocols states that the cloth "shall not be regarded as dampening while its thread is held taut by the hand" (Dampening Protocols, Annex 9, rev. 3). Clerks who cut the thread away to keep it out of the polish find their work reclassified as undampened and are required to begin again.

Use

The cloth is applied in long passes, never circles, to any surface whose reflectivity has been entered in the observation register. Surfaces below Grade 4 reflectivity may be wiped with plain linen; above Grade 6, the cloth must be interposed before the observer's own reflection has resolved, a window the Watch Candle records as lasting between eleven and fourteen seconds depending on the taper.

The cloth may not be folded twice in the same direction during a shift. This rule derives from an incident on Floor 1192-Δ in the winter of the year recorded as 8804, in which a clerk named Halverand Ott folded his cloth into quarters between passes and produced what the subsequent inquiry called "a small, obedient duplicate of the room." The duplicate was dispersed without injury under the authority of Edict 5221-, and the prohibition entered the protocols the following spring.

The Ott Recension and the Discalced Objection

Type-δ exists in two forms. The sensing form, current issue, incorporates the durable fold and the pendant thread. The discalced form, favoured for three decades by the Lapidaries' polishers, omits the fold entirely on the reasoning that a cloth which dampens by being observed must itself be as nearly unobserved as possible.

Which form is standard is genuinely disputed. The Department of Ontic Verification holds that the drafting committee, sitting in the year recorded as 8790, intended the fold and that the discalced form is a lapsing error of transcription; its position rests on the Third Concordance, Annex 4, which speaks of "the four-fold cloth of polishing" without further specification. The Department of Ontic Prefiguration reads the same phrase as a description of the hem and has said so in writing.

"The cloth is four-fold from the bolt. That the committee meant quarters is a reading introduced by clerks who have never seen a bolt."

— Department of Ontic Prefiguration, memorandum to the Vellum Rotunda, 8791

The dispute has never been settled. Both forms circulate, both bear the Lapidaries' seal, and the Office of Ontic Verification has declined to issue an edict of precedence on the question, noting that it "lacks a minority to overrule."

Documented incident: the Still Life

The most cited record of Type-δ in operation is the wall panel known as Still Life with Screaming Pillar and Dust-Cloth, in which a folded square of the cloth rests against the base of a depicted Screaming Pillar. The panel's cataloguers recorded the cloth's placement as "deferential," and the panel has since been used as an instructional example in two separate courses of clerk training.

A visiting rule applies to the alcove housing the panel: no more than four observers, and none carrying a second cloth. The rule was introduced after the year recorded as 8812, when a sixth observer presented a Type-α cloth alongside his Type-δ and the panel registered a fifth edge.

Storage, loss, and the numbering of cloths

Cloths are stored flat, interleaved with Parchment-Type PM-7 bearing the embossed rotating-wheel sigil, in the racks of the Vellum Rotunda, whence they are directed with the general supply to Annuli II through V. A cloth that has been used on a Grade 6 surface is retired to the stained-cloth inventory and may not be reissued, though it may be displayed.

Cloths are not individually numbered, a decision the Guild of Lapidaries has defended on the grounds that "numbering invites the cloth to be counted." Where the record requires identification, the Office of Ontic Verification assigns a description instead — the cloth surrendered by Ott in 8804 is catalogued only as "grey, folded, thread cut." It has been reproduced on request eleven times. The reproductions are held in a locked cabinet on Floor 214-β, and the key is kept elsewhere.

No cloth has ever been reported irretrievably lost. Three have been reported stolen, in each case by the same clerk, who has since been reassigned to a floor with no reflective surfaces and has stated that he is content there.