A model of the US RQ-170 captured on December 4, 2011, was displayed at Tehran during the pro-government rallies marking the 33rd anniversary of the victory of the Islamic Revolution on February 11th.
According to the Fars news agency, that has released a very small image taken by the Iranian ralliers, the model was built by the aerospace unit of the IRGC (Islamic Revolution Guards Corps).
Although the one displayed at Tehran is a model (even if some are still uncertain whether the one seen in the aftermath of the capture is real or fake), this can be considered the first public appearance of the Lockheed Martin RQ-170 Sentinel since it was showcased for the first time by Iran after it was recovered.
Noteworthy, whereas the alleged real one had its underbelly completely hidden, the 1:1 model on display on February 11 seems to have the undercarriage extracted and clearly visible.
Source: The Aviationist