This is a photograph of a broken part of some stone structure obtained from Tosham Hill (Bhiwani, Haryana). What could this be? Few possibilities are listed:
1. It could have been part of the pinnacle part of a toy temple, perhaps the temple being part of some larger scene. Points in favor of this assumption: presence of amalka like structure and presence of a 'kalash' (holy pot/vessel) like structure on top of it. This arrangement is typically seen in the structures of ancient temples of India. Point in contradiction of this assumption: Usually and almost certainly, only one amalka is present on temple tops. Here there are two amalka like structures.
2. The peak portion of 'mukut' (i.e., crown) seen in the sculptures of deities/kings etc. However
a crown is quite elaborately decorated and this stone structure is quite simple in appearance. As an example of the top portion of a crown is that of goddess saraswati shown in this photo (marble, 12th A.D, Rajasthan) where it shows a crown structure similar to the Tosham stone structure but with extensive decorations.
3. Another possibility (and the most serious one) is that the stone sculpture is the top part of a deitie's sceptre, possibly that of lord Vishnu. Below is a photograph of the top portion of Vishnu's sceptre, shown in stone. The similarity to the Tosham sculpture is uncanny.
