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Title: What metal, what date? Post by: Rob Two Spades on January 13, 2011, 06:22:47 PM I've found a few of these buttons near where I live. Its odd that there's no corrosion on it. Any ideas on metal? Or period? Is it military?
Thanks Rob Title: Re: What metal, what date? Post by: shunggav on January 13, 2011, 07:05:52 PM pouter buttons and think Georgian
Title: Re: What metal, what date? Post by: The Doc on January 13, 2011, 07:50:21 PM Buttons like this are usually made of tombac, like these:
http://www.ukdfd.co.uk/ukdfddata/showcat.php?cat=104&page=3&si=tombac&perpage=12&sort=1 (http://www.ukdfd.co.uk/ukdfddata/showcat.php?cat=104&page=3&si=tombac&perpage=12&sort=1) Tombac is about 80% copper, with 5-20% zinc. See here: http://www.ukdfd.co.uk/ukdfddata/showcat.php?cat=104&page=3&si=tombac&perpage=12&sort=1 (http://www.ukdfd.co.uk/ukdfddata/showcat.php?cat=104&page=3&si=tombac&perpage=12&sort=1) Pewter buttons are also found, but are usually much more corroded in the ground. Pewter is largely made up of tin, with small amounts of other metals (copper, antimony, bismuth or lead) Title: Re: What metal, what date? Post by: dragonsbreath(Paul) on January 13, 2011, 08:27:12 PM I totally agree with Peter.... Tombac and 18th century 8)
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