What does Royal Arch. stand for?

Royal Arch. stands for "Royal Archives, Windsor Castle, Berkshire [with gracious permission of her majesty the queen]"

How to abbreviate "Royal Archives, Windsor Castle, Berkshire [with gracious permission of her majesty the queen]"?

"Royal Archives, Windsor Castle, Berkshire [with gracious permission of her majesty the queen]" can be abbreviated as Royal Arch.

What is the meaning of Royal Arch. abbreviation?

The meaning of Royal Arch. abbreviation is "Royal Archives, Windsor Castle, Berkshire [with gracious permission of her majesty the queen]"

What does Royal Arch. mean?

Royal Arch. as abbreviation means "Royal Archives, Windsor Castle, Berkshire [with gracious permission of her majesty the queen]"