TSR's 1976 "Lower Prices" Dice Ad (that shares text with Holmes Basic)

Over on Ebay, Jim Ward has been auctioning items accumulated from his career working at TSR, and among them I noted this early advertisement for dice from TSR that I don't recall seeing before. It appears to be from 1976, as the reverse side is an announcement for the new Metamorphosis Alpha RPG. TSR produced a number of these monochrome advertising sheets in the 1970s, some of which were also used as ads in magazines.

The lengthy explanatory text at the bottom of the page especially caught my attention because it's extremely similar to the "USING THE DICE" section found near the end of the Holmes Basic rulebook. Back in the last post of the Holmes Manuscript series, I presumed that this section originated with TSR, as it is not found in Holmes' manuscript.

Image originally posted in the Holmes Basic G+ Community (archived here)

The above image is from a 2nd or 3rd printing of the rulebook, but the "Using the Dice" text is the same in the 1st printing. Below is a transcription in which I've bolded the text that is the same as in the "Low Impact" Ad:

        Players need not be confused by the special dice

called for in DUNGEONS & DRAGONS. By using the

assortment of 4-, 6-, 8-, 12- and 20-sided dice, a wide

range of random possibilities can be easily handled.

        For a linear curve (equal probability of any

number), simply roll the appropriate die for 1-4, 1-6, 1 -

8, 1-10 , or 1-12. If some progression is called for,

determine and use the appropriate die (for instance, 2-

7 would call for a 6-sided die with a one spot addition).

For extensions of the base numbers, roll a second die

with the appropriately numbered die. For example: to

generate 1-20, roll the 20-sided die and 6-sided die,

and if the 6-sided die comes up 1-3 , the number shown

on the 20-sider is 1-10 (1-0), and if the 6-sider comes up

4-6, add 10 to the 20-sided die and its numbers become

11-20 (1-0). This application is used with the 12-sided

die to get 1-24. If 1-30 or 1-36 are desired, read the 6-

sider with the 20- or 12-sided die, with 1 -2 equalling no

addition, 3-4 adding 10, and 5-6 adding 20. This

principle can be used to generate many other linear

curves.

        For bell curves (increasing probability of numbers

in the center, decreasing at both ends), just roll the

same die two or more times, roll several of the same

type of dice, or even roll two or more different dice.

The introductory sentence has been replaced with two sentences, and one extra sentence covering modified ranges has been added, but otherwise the text is almost identical. From this we can see how another portion of the text of the Holmes Basic rulebook was constructed from some pre-existing text. I don't know whether this text is original to this ad, or if there is yet another source text from which it was taken. I assume the author here is Gygax based on the lengthier "Dice" section in the AD&D Dungeon Masters Guide.

A later version of the "Using the Dice" text that is revised to include the chits can be seen in my recent post, Jim Ward on the Why of Chits.

See Also: 

Dice Dragon (New Monster)

Gygax's Killer Die

Marked 20-sided Die

Dice of the Gods (Creative Publications Dice Packaging)

TSR Percentile Dice in the 1970s

And Jon Peterson's numerous articles on RPG dice of the 1970s.