This stamp is easily identified. The circular lines around the denomination either join with the frame line of the vignette or they don't. If they don't join the stamp is Type I, if they do the stamp is Type II. Scott 261 is the Type I unwatermarked stamp, Scott 261A is the Type II unwatermarked stamp. Both types of the unwatermarked stamps were first printed in 1894.

The Type I double-line watermarked stamp is Scott 276 and the Type II double-line watermarked stamp is Scott 276A. Both types of the watermarked stamps were first printed in 1895.

Scott 261 and 276 - Only the right side is shown here. In the Type I design the circle around the denomination does not join with the outer frame line of the vignette. The left circle is similar.

Scott 261A and 276A - Only the right side is shown here. In the Type II design the circle around the denomination joins with the outer frame line of the vignette. The left circle of the Type II is similar.