Here is a Stewart-Warner "Survey" speedometer in nice overall condition. If you're familiar with these, you'll know that they did not come from the factory with mounting studs & brackets that would enable you to mount the unit in a dash hole. When I popped the lid on this one to clean under the (curved) gl***, I removed the guts from the cup & installed mounting studs, which come with proper factory style split mounting brackets. The size of the hole needed is approx. 4-3/8". The speedometer & odometer work well...not too sure about that survey deal, though, for what it's worth. The bezel is nice....no dings, scratches or pitting. The price is plus shipping....$15 to the lower 48. Pay Pal (F&F) would be best, but a Postal Money Order would work, as well. The first P.M. committing to buy gets it.