What You Get
A Clinical Chemistry Calculator to calculate results direct from transmittance readings from Leitz, Coleman, B&L, Beckman or any instruments calibrated in % transmittance. From Dade Reagents, Inc., distributed by Scientific Products with 1956 copyright. The light cardboard outer ring measures about 6-1/2″ across. There is an inner rotating cardboard ring about 4-3/4″ across and a moveable clear plastic piece with fine line for reading the calculation.
See scan. This has stains, dings and creases but is still quite useable. No names or other markings. From clean, smoke-free home.
I am delighted to combine postage and insurance costs for you — often sending additional items for FREE or just a few cents more. It is worth taking a look at my other items before you check out. If purchasing more than one item, please ask me for an adjusted invoice or you will pay a lot more in postage than you need to.
Generally sent the same day your payment arrives. I will back with one piece of cardboard and wrap all with plastic wrap before putting inside a kraft paper envelope when sending First Class with Delivery Confirmation. I can send with additional packaging, Insurance or Priority or Express Mail shipping for an additional charge.
If you’d like more information or larger photos, please feel free to contact me. If it’s the price you don’t like, make a reasonable offer.
Check out my other Science Equipment and School & Office Items — and ask for a combined-postage invoice!