[Bell Historians] Re: Levels of Bell Production
Richard Smith
richard at zbga3CuZditpkORUrquXTFvU7Jq_-HcGqXapSJcN3g0HCDgfpiN1wV3gvs57Zi6nMBw8mCPUC0tpX9bnuNs.yahoo.invalid
Sat Oct 17 14:34:27 BST 2009
Chris Pickford wrote:
> Probably a tendency in recent years for there to be more
> bells numerically but smaller ones - so an apparent
> increase in activity may in fact mask a decline (or the
> decline is more serious than it appears)
I would have expected this too, but since 1960 the surviving
output (as listed in the pNBR) seems to be pretty constant
at around 25 tons/year. See this graph:
http://ex-parrot.com/~richard/pnbr/surviving-modern-tonnage-by-year.png
RAS
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