Rochester 5675S02556P SR TwinSite Dial Capsule 0-90 Ohm 8680 8280 6500 Series
The dial face is printed with “Dial No. 5-2556” and the back is marked 5674S02556. Compatible with Rochester 8680, 8640, 8280, and 8240 Series spiral gauges and 6500 Series fixed-length gauges. Manufactured by Rochester Gauges (now Rochester Sensors) in Dallas, Texas.