2 different drive wheel patterns from RRSC burbank. These are master
prototypes, never put into production or not shown in the catalog. Part#B-7056
written on one of the patterns.
8 1/4" OD tapering down to 7 3/4"OD, thickness .85" to .86", inside crank/axle
center is approx 2 3/4" x 1.78". The Aluminum
castings can be used to make a master pattern board with.
These are unfinished castings of the original patterns.
You finish machining the back flat, and polish up the surface, then mount to
an Aluminum plate which creates a Master Aluminum
production board to
last many lifetimes of making castings at the foundry. Sold As-Is.
SOLD AS-IS, No returns
Cash price = $600