> C F Casella & Co, c1930 catalogue:- 'Electrum' > A West & Partners, 1953 catalogue:- 'Electrum' > A West & Partners, 1930 catalogue:- 'Electrum' throughout including > J Halden, late 1920s catalogue:- still the same as 1902. > J Halden, 1910 catalogue:- exactly the same as 1902. > Amsler planimeters and 'Electrum' in their description of Amsler However they used 'German Silver' in their description of the > instruments which look suspiciously like Riefler round pattern > J Halden, 1902 catalogue:- 'Electrum' (even for their 'New Model' > B J Hall & Co, 1930 catalogue:- 'Electrum' > William Elliott & Sons price list in the back of the 1851 edition of this question was asked on the Yahoo Drawing Instrument site. it is sort of a mystery metal that each company could concoct and it sounded good. While I do not doubt Larry is correct the term "Electrum" was used by many of the makers of drawing instrument to describe what they were made of. I will add some more photos and links that I found on the internet later. I did find another thread by rivett about another set here. I have attached some more photos of mine incase someone can tell us any more about it. I suppose not so different from that 486 computer I bought before 1995 and recently sent to the recycling centre. I wonder how the folks who made these things would feel about that ?Įven more so some one who paid a considerable number of hours work to buy the sets when new. īy what I have seen on line many of these old sets can be had for a little more than the price of a fast food lunch. Given the machine tools they would have had in the early 1800 s when the examples in Rivett’s book would have been made I think they are amazing pieces of work. I suppose since it is unmarked determining who made it could come down to measuring screw sizes, pitches and thread angles or knurling patterns etc.Īt any rate I still was impressed with the construction of the various pieces and I would be interested to know if any one knows where there might be anything on line about the shops where these instruments were made and the equipment they might have used. I didn’t find an exact example of my set but there are many similar ones out there. This may be one of those times when I should have done a little more homework beforehand.Īs is often the case just because something looks like something old and rare or unusual doesn’t mean it is as I found out when I did a little searching on ebay and other sites on the internet. I’ve had several too little too late moments lately when it came to asking about something or going to see something so I thought I would just go ahead and post. I have often thought about posting about this set but thought I should do a little more investigation before I posted it.
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