Do Bracers of Defense stack with a shield?

Question

In AD&D (1e or 2e) would Bracers of Defense stack with a shield?

The relevant text from the AD&D DMG (p. 139) is:

Their magic bestows an effective armor class equal to actually wearing armor and employing a shield. Of course, if armor is actually worn, the bracers will not be effective, but they do work in conjunction with other magical items of protection.

The wording in AD&D 2e is very slightly different (DMG p. 162):

Their magic bestows an effective armor class equal to actually wearing armor and employing a shield. If armor is actually worn, the bracers have no additional effect, but they do work in conjunction with other magical items of protection.

For what it's worth, I don't remember any player actually doing this back in the day. Magic-users couldn't use shields (and had no way to acquire what later editions would call shield proficiency), and a multi-classed Fighter/Magic-user (for example) would usually just wear armor and leave the Bracers of Defense for the single-classed Magic-user.

I'm mostly curious because of the way this is explicitly addressed in the later editions, such as 3e where they explicitly stack (the 3e equivalent Bracers of Armor gives an armor bonus, which doesn't stack with actual armor but does stack with anything that grants a shield bonus), or 5e where they explicitly don't stack (per the item's description).

Answer 1

Shields counted as armor in AD&D

2nd Edition

For 2nd Edition you can see this both on the armor table on page 69 that lists under types of armor also Shield, and on the table 46 on page 75, Armor Class Ratings:

As you can see, in the second line, "Shield only" counts as a Type of Armor.

The whole section on page 75 is also titled Armor, and lists Shields as one of the described types of armor, right between Scale Mail and Splint Mail.

So wearing a shield is wearing armor, and will mean the bracers won't function.

1st Edition

The Armor Table (on page 35 PHB) lists Shields, too, and the ARMOR CLASS TABLE (on page 36 PHB) looks very similar to the table above, again with the Type of Armor column header and "Shield only" listed on the second row with AC 9.

However the text there says

Armor, along with the use of a shield, is the basis for determination of how easily a character can be struck by an opponent's weapon

so it's a bit less clear cut (like many things in 1e), because if you use armor along with a shield, then a shield is not armor. These two contradict each other, so the DM would have to make a ruling how to run it. From all I know about E. Gary Gygax, I'd guess he did not intend your shield to stack with bracers of defense.