"Mayhap"

[Seraphor]

But what period? And accurate in what way? This isn't old English we're speaking. If that were true, the first thing that would need to change is that all our 's' letters would need to be altered to 'f' - that's something that only really happened at the beginning of the 19th Century.

They weren't pronounced as F's... they're not even F's, they're 'long S's, so its not even a language issue, it's a typeface issue.
It's like 'Ye Olde' is pronounced exactly the same as 'the old'. The e is silent and the Y isn't a Y, it's a thorn.