Siena - guided tours for first timers

[reajackson]

Howdy:
I have not been on this site in a while.
A question....
Does anyone have a recommendation for a quality / reasonably priced tour guide for one day in Siena Italy?
I have been to Siena many times but I have two compatriots who have never been there and thinking something as an introduction for them would be a good first experience.
Any recs would be welcome.
Grazie in avanti.
Rea Jackson
Denver area

 

[Penn251]

Sent you a DM

 

[reajackson]

Penn - thank you very much - helps alot.
Rea