Mrs. Bertha Sipes lived in Petersburg, a borough on the Juniata River in Huntington County of south-central Pennsylvania.

Before the bankruptcy of the Pennsylvania Railroad, Petersburg was a stop between Tyrone and Huntington PA.

https://en.wikipedia.org/wiki/Petersburg,_Pennsylvania

In September of 1933, Bertha received a postcard from her Sunday School Class, the “Philathea Class”.

The postcard does not indicate the congregation or denomination of these “lovers of God”.

In the early 20th century, the Philathea organization supported Bible classes for women in several countries.

The movement was interdenominational.

https://en.wiktionary.org/wiki/Philathea

The postcard was mailed by Mrs. Dittsworth, the class Secretary.

The face of the postcard is a drawing of the open doors to a church.

Lamps flank the entrance; a stained-glass panel can be seen beyond the doors.

The postcard was published by the G. & W. Company of New York City; this is not a denominational publishing house.

Because the postcard arrived in the Fall, it is possible that the congregation was planning a “Rally Day” or some other celebration of the beginning of the Sunday School year.

The invitation makes no mention of this, however.

It may be that Mrs. Sipes had not been attending faithfully, and the Sunday School Class was hoping to engage her more strongly.

In any event, Bertha preserved the postcard in good condition.

One hopes that she enjoyed continued attendance at the Philathea Class.