Are there any markings on the bottom of the figures, if so, you may try to match up by making a photo of one and then check Google Images. Otherwise, take pics of each of the two you have and again look at Google Images and find the same ones or similar.
To search via Google Images:
- Visit images.google.com.
- On your computer, click the image / picture you want to search for.
- While holding down the mouse, drag the image into the search box.
( I am not very good at dragging things around, so I wonder if you could also Copy/ Paste an image into the search box. )