Fellow Maxwell owners, My late 1917 Delivery came with what appears to be a custom ordered auxillary ammeter mounted to the left of the steering column as well as the "charge Indicator" on the late 1917 dash panel. It was made by Roller-Smith and is marked 0-10-20-30. What I'd like to know from you is what your cars have as far as make and markings. My gauge is destroyed and I have a chance to buy a 20 amp version but don't know if I should wait for a 30 amp one or if 20 is sufficent because I have yet to get my car running and I'd like input of those with an operating car. Thanks for your help, Howard Dennis