I have for sale two (125mm dia. X 6mm thk.) first surface mirrors. Both first surface mirrors are made out of BK-7 optical glass and both of the mirrors have been polished smooth to 1/8th or better wavefront. Both sides of each optical glass flat rated 1/8th- 1/10th wave front on the surface. In addition each first surface mirror is coated with Enhanced Aluminum with a 97% reflectivity across the visual spectrum and over-coated for durability. The backside of each first surface mirror is not coated but polished smooth.
I planned to make a long focal length folded refractor with these but long-term unemployment forces me to sell the wonderful mirrors. My loss is your gain and price to sell at $70.00 a piece or $130.00 for both. Shipping and handling is $5.00 via USPS Priority Mail. I accept Money Order or PayPal for payment (Please note if using PayPal I will only ship to confirmed address and if paying with a credit card via PayPal please add 3% to cover fee.)
Thanks for looking and Clear Skies,