I've been looking through a 1971 NEC I acquired a while ago.

The prices listed inside the front cover sure contrast with some of the current amounts I've seen mentioned on ECN.

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The following schedule of prices applies for single and multiple copies of this edition of the 1971 National Electrical Code:

1 to 4 copies: $3.50 each
5 copies or over: $3.25 each
And so on down to $2.30 each for 500 or more!

Oh and if you want to get really fancy... [Linked Image]
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An attractive hard-cover edition (NFPA No. 70HC) is available for $4.95 per copy.

Prices quoted are F.O.B. Boston, Mass., Taxes not included.