Guest Chris,
            I am led to believe, by virtue of a t.v. progrwmme concerned with change and parlour state of certain pub signs, that way back in our history a rule/law /ordnace was introduced that required all inns and taverns be identified by a suitable sign in order that the people of that time who could not read were still capable recognising the venue. It is probably still on the statute books. The above being the case, it is probable there were many, many houses designated "The Eagle" and a sign erected at the choice of the house owner or tenant.