Many scientists collect fish scales, make impression slides of the scales and store them in small envelopes along with the original scales for easy reference. Envelopes come with or without a gummed flap; with or without printing; and fit our 1 x 3” slides only.
Printing includes: Scale sample #; species; length; weight; sex; state of organs; location; gear; date; collector.
Envelope dimensions: 57 x 89 mm (2.25 x 3.5”)

E-411-114-B20 =  Pack of 1000, Gummed, 2.25in x 3.5in

E-411-114-B25 = Pack of 1000, No gum, 2.25in x 3.5in