This machine is not coin operated.  It takes an attendant to make the penny for the customer.
You make 100% of all revenues
Vendor operated machines generate as much as 3 times as coin op machines
Machine can hold up to 4 custom engravings
Compact 3 sq ft
crank is easy to turn because 8-1 gear ratio
Machine can be placed on a stand, cart, or table
 
There is a Plexiglas shield around the gears to  protect attendant and customers from injury.
 
Price
$2,395 plus shipping includes 4 engravings.
 

Can purchase machine and 1 engraving for $1,995 and add additional engravings as needed