Hand-Painted Animal Cell Anatomical Model on 13 x 9 inch Base, 10000x Magnification Entomology & Zoology_Zoology Charts & Models Plug-type resistance box with constantan-wire

Plug-type resistance box with constantan-wire coils between split brass contact blocks

with 4mm sockets that connect directly to signal generators and other audio sources for sound-wave demonstrations

Selenium photovoltaic cell on a 4 by 3 by 1

Square die-cast alloy boss head with metal thumbscrews

and printers to classroom computers

Hand-Painted Animal Cell Anatomical Model on 13 x 9 inch Base, 10000x Magnification Entomology & Zoology_Zoology Charts & Models Plug-type resistance box with constantan-wireOver 10,000x magnification animal cell model on mounted base reveals detailed organelle structure for comprehensive cell biology teaching.