Sergey
== Description == '''The Sphygmograph''', matching the illustration on H. P. Blavatsky's Scrapbooks, volume 12, page 216, item 1. Instrument on the forearm, including the wrist strap, OZS TROY dial, clockwork box, upright lever, hatching, outer frame and original title. The album is rotated relative to this source. The plate has no visible printed folio; the following printed page 7 explicitly identifies this large engraving as page 6. The artist and engraver are not establi...
