BriceBarclay - Victor Meco
That page shows a variety of MECO regulaters with info about them.
I did a search on Google for MECO regulaters and got a large number of hits.
oops sorry-that didn't show type G
I did find this info on a sale item on Ebay auction site though-can't verify its accuracy
TYPE "G" REGULATOR/FLOWGAUGE
MECO Type "G" Regulators are ideal for light capacity industrial and commercial work. Their lightweight and compact single stage design makes them well suited for a variety of applications. Flow Gauge Models are ideal for MIG and TIG shielding gas applications.
FEATURES INCLUDE:
*Machined body and cap
*50mm gauges
*1 1/4" Neoprene Diaphragm
*Self Reseating Relief Value(except on 15 PSI models)
*Sintered inlet Filter
*Inlet pressure to 3000 psig/207 BAR
MODEL #8214
*DESCRIPTION Acetylene-CGA 510
*GAUGES IN / OUT (PSIG 400/30 BAR 28/2)
*OUTLET FITTINGS (9/16 18LH)
*RATED OUT PRESSURE (PSIG 15 BAR 1)
*AIR FLOW (SCFH 180 LPM 85)
*WEIGHT (lbs. 1.75 Kgs. 79)