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.
Generally sent the same day you pay. Unless you request otherwise, I will back this with one piece of box cardboard (to help prevent the Post Office from bending it), wrap it in plastic wrap (to help protect the item from moisture or torn packaging), then send inside a manila envelope (or brown paper) when sent via First Class Mail with Delivery Confirmation. This is the cheapest postage option that includes both item protection and tracking. See the shipping page to give you an estimate on the cost of a First Class Light package. I am delighted to combine postage and insurance costs if you purchase more than one item. The second item may travel for free or just a few cents more — so it’s worth taking a look at my other items before you complete your order.
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!