BTB 1E: a Half-elven C/MU in platemail?

[fingolwyn]

I'm in the process of creating new characters for a new 1E game and just noticed something that has escaped me for about 30 years. Apparently a half-elven cleric/magic-user (multiclassed character) can wear platemail and still cast spells (without taking it off). The description under Half-elf (pg. 17) indicates only that multiclassed clerics aren't restricted by weapons, but thieves are by armor and weapons, and the description under Multi-classed Characters: Cleric/Magic-user (pg. 32) indicates that a benefit of being a cleric/magic-user is the use of armor and better weapon selection. These sections further indicate that this benefit is offset by the fairly low level limit (cleric 5, magic-user 8 with 18 INT).

Am I missing something somewhere, perhaps in another core book (DMG?) or a Gygax-issued errata clarification? Or can a half-elf cleric/magic-user really wear chainmail/platemail while casting MU spells?

[T. Foster]

can a half-elf cleric/magic-user really wear chainmail/platemail while casting MU spells?

Yes, he can.

[Matthew]

If it is of any interest, in Gygax's own campaign it apparently later transpired that only elf mail could be worn by such characters, which is the rule that eventually appeared in second edition.