Geoff,

Spelter, while sometimes used merely as a synonym for zinc, is often used to identify a zinc alloy. In this sense it might be an alloy of equal parts copper and zinc used for hard soldering and brazing, or as an alloy, containing lead, that is used instead of bronze. In this usage it was common for many 19th-century cheap, cast articles such as candlesticks and clock cases and early 20th-century Art Nouveau ornaments and Art Deco figures. The word 'pewter' is thought to be derived from the word 'spelter'.[3] Zinc ingots formed by smelting might also be termed spelter.

In other words, the least desireable of casting materials. The detail can be quite good on well cared for examples and most all are artificially patinated.

The nice soldier bust above looks like a fine, solid bronze piece. Always try to stick with bronze examples mate - some can be hollow cast too, but the solid versions are much more desireable and valuable.

Thanks for sharing!

Bill