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High Precision Optical Refractometer

Currency:USD Category:Collectibles / Autographs Start Price:NA Estimated At:200.00 - 400.00 USD
High Precision Optical Refractometer

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Auction Date:2019 Jun 12 @ 18:00 (UTC-5 : EST/CDT)
Location:15th Floor WeWork, Boston, Massachusetts, 02108, United States
ALS - Autograph Letter Signed
ANS - Autograph Note Signed
AQS - Autograph Quotation Signed
AMQS - Autograph Musical Quotation Signed
DS - Document Signed
FDC - First Day Cover
Inscribed - “Personalized”
ISP - Inscribed Signed Photograph
LS - Letter Signed
SP - Signed Photograph
TLS - Typed Letter Signed
A high precision Abbe 3L optical refractometer manufactured by Bausch & Lomb, 6? x 12.75? x 10.5?, consisting of upper eyepiece, thermometer, compensation dial, adjustment wheel, on/off scale display switch, illuminator arm with lamp, and assembly with measuring and illuminating prism. Manufacturing plate to reverse reads: "Cat. No. 33.46.10, Serial No. 0321097Y." Felt tip notations to frame are as follows: "PTHO724" and "99028436." Power cord terminates in three-prong plug, which is marked: "Bausch & Lomb, P/N 334610–668, LR982–120…120V., 6.3VAC…50/60 HZ, 0.7 AMO, 6.5 W, Listed 792 E." In very good to fine condition.