From left to right starting on top: NN Lima U-670C, Fred Locke U-675A with a pin sleeve, Ohio Brass M-2265, Fred Locke U-675 glaze weld with a pin sleeve, NN Pittsburg sim to M-2231, NN Westinghouse U-690 with 7237 incuse, U-964 Victor glazeweld with a pin sleeve, NN Westinghouse M-2215, On bottom: Victor Resistance=Infinity U-926, Ohio Brass U-705, Victor M-2260 with a pin sleeve, NN Lima U-670C, Fred Locke U-670A, Victor U-670