New mirror for compound microscope to replace base mirror, or add natural light capability to existing illuminated scope. 

Flat face (and spherical face on opposing side) mirror measures 50mm; base mount fits into a ~49mm recess, or can be mounted on the base of the microscope; mirror can be removed from the base mount also.  Discount for multiple units.

Shipping $15 in contl US. Paypal preferred. CA residents add 7.75% sales tax.