As was its practice in all matters, IBM had given considerable thought on the style, design elements, size and operation of individual clock hands, and it conveyed that thinking in 12 paragraphs of guidelines for its sales people, as shown below.
Looking back now over nearly 70 years, it may seem excessive to apply that much verbiage to a mere clock hand. But the attention to detail implicit in those guidelines was just a single manifestation of one of IBM's basic beliefs: the pursuit of excellence.
For example, broad spade hands for secondary clocks, i.e., non-master clocks, were cut from sheet aluminum, finished black and used principally with illuminated clocks. Ornamental clock hands were cut from sheet brass and were standard finished black but could be finished in any standard metal finish. Unit prices varied from a low of $9.00 for the 5854 broad spade hand used with a 12-inch dial — through $12.50 for the 5877C Roman hand for an 18-inch dial — all the way up to $15.50 for the 5878A serpentine hand or $16.50 for the 5878D arrow hand, both for a 24-inch dial.