This small framed roundel contains a piece of glass into which is scratched:
"God is Love
Samuel Bradburn, 16 September 1774"
A piece of paper on the back of the roundel explains that Samuel Bradburn scratched the motto, name and date into this piece of window glass at Chaston-on-the-Hill Methodist Chapel in the first year of his itinerant preaching ministry, in 1774.
Bradburn (1751-1816) was one of John Wesley's preachers and closely connected with John Fletcher of Madeley.
See also the painting of Bradburn 1993/1628 and the engraving 1995/3066 in the Online Collection.