Amazon.com : Black SX-70 Polaroid Alpha Model 2 Instant Camera (Alpha 2) : Electronics
Polaroid SX-70: Model 1 vs Alpha 1 - MiNT Camera Blog
Polaroid SX-70 Camera Comparison Model 1 & 2 , Sonar , Classic Rainbow Stripe Box Type Land Camera - YouTube
File:Vintage Polaroid SX-70 Land Camera Alpha 1 Model 2, Same Features As The SX-70 Model 1 Except Finished In Black Plastic And Brown Porvair, Made In USA, Instruction Booklet Dated 3 77 (35836751016).jpg - Wikimedia Commons