This image shows the chapel interior, where originally services would be held when the mission was active. Now it is used to display historical artifacts and illustrations for visitors to the park.
The description states:
THE INTERIOR OF THE ALAMO
SAN ANTONIO, TEXAS
–Note the signs posted along the side of the reception desk at right. One unusual one states “Gentlemen will remove hats Please”. This is likely posted because this was once a sanctuary.
The card dates from the 1960s.