i recently acquired a steel tank with the following markings:
KHR 22755 AIR 10 - 85. TP335 FP200. V 12.1 W14.9
It's 7" in diameter and 24" from the base to the top of the neck.
I've ascertained that it's a 12.1L tank from Oct. 1985, serial number 22755, working pressure of 200 BAR and...