This is for an old Victorian road drawing tool that draws two lines of ink. The steel ends are adjustable on both prongs for the fineness of ink and also the wheel in the centre adjusts the distance b

 

One microscope slide with 21 selected marine fossil diatoms from a deposit near Redondo Beach California USA. Mounted in Zrax, a special high refractive index diatom mountant. Will ship worldwide; Fla

 

A 1 1/4" disc made up of various metals.It comes with a cut out ad for the device and I also found with it a flyer for electropathist ,H.O. Candee.

 

1953 Pickett Slide Rule with original box, case and instructiion booklet. Features all metal durability, eye saver color, permanent accuracy to +.000275 in., top grain leather case, Eze-slider tension

 

Sodium perborate is a white, granular solid which decomposes in an aqueous solution to hydrogen peroxide and sodium borate. Active oxygen content 10%. Melting point is 63 degrees Celsius. It's used in

 

New Made in The U.S.A. Folding sluice box lightweight approx 5.8Lbs approx 51 in Long x 9in wide removable flair, folds up and can fit in a 5 gallon bucket or backpack, Deep V ribbed rubber matting, a

 

VINTAGE *POCKET COMPASS* MADE IN JAPAN-WORKING-TRAVEL INSTRUMENT-NEAT MILITARY USED ORIGINAL CONDITION WITH SCRATCHES, SCUFFS, AND MARKS FROM AGE AND USE. TESTED AND WORKS AS IT SHOULD! HAS SWITCH ON

 

Vintage Taylor Thermometer For your Consideration is a Vintage Mid Century Modern Taylor Desk Top Thermometer with an Art Deco Type Design Flair. It has been accurate the last few days measuring our i

 

This is a lot of 50 Lipitor brand name new pens, 25 of each pictured. They are all black ink, metal/plastic. The blue ones are twisty, and have a glow in the dark logo. The squarish ones are clickers

 

approx 4" x 3" box and cards 2 cards are missing -- box shows age/wear - these are the actual items you will receive laminated Comparative Study Cards Anatomy - Cat Frog Necturus Shark listed on the b